MEC1322 Datasheet, PDF (129/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
10.4 Interface
This block is designed to be accessed externally and internally via a register interface.
FIGURE 10-1:
I/O DIAGRAM OF BLOCK
Host Interface
ACPI Embedded Controller
Interface (ACPI-ECI)
Power, Clocks and Reset
Signal Description
Interrupts
10.5 Signal Description
There are no external signals.
10.6 Host Interface
The registers defined for the ACPI Embedded Controller Interface (ACPI-ECI) are accessible by the System Host and
the Embedded Controller as indicated in Section 10.12, "Runtime Registers" and Section 10.13, "EC-Only Registers".
10.7 Power, Clocks and Reset
This section defines the Power, Clock, and Reset parameters of the block.
10.7.1 POWER DOMAINS
TABLE 10-2: POWER SOURCES
Name
Description
VCC1
The logic and registers implemented in this block reside on this single
power well.
10.7.2 CLOCK INPUTS
This block only requires the Host interface clocks to synchronize registers access.
10.7.3 RESETS
TABLE 10-3: RESET SIGNALS
Name
VCC1_RESET
Description
VCC1_RESET resets all the logic and registers in ACPI Embedded
Controller Interface (ACPI-ECI).
 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 129